Description : Optimum speed for grains like gram,pea,etc.,thresher using power is a) 300-400rpm b) 400-600rpm c) 600-800rpm d) 1100-1200rpm
Last Answer : a) 300-400rpm
Description : Optimum operating cylinder speed for the power operated maize sheller is a) 200-400rpm b) 400-600rpm c) 600-800rpm d) 1000-1200rpm
Last Answer : c) 600-800rpm
Description : Speed of the cutter bar in case of combine (grain) is (a)400-550 rpm (b) 500-800rpm (c)800-1000rpm (d) 1000-1200rpm
Last Answer : a)400-550 rpm
Description : Differential lock offers advantage of E. Threshing efficiency of thresher (power operated) F. Capacity of chaff cutters G. Cleaning capacity of straw walkers H. None of the above
Last Answer : F. Capacity of chaff cutters
Description : Cylinder loss in a stationary power thresher can be reduced by increasing the : M. Cylinder peCylinder loss in a stationary power thresher can be reduced by increasing the : M. Cylinder peripheral speed N. Concave clearance O. Blower speed P. All of the above
Last Answer : M. Cylinder peripheral speed
Description : Adjustment needed when thresher blows grains with chaff a.) Decreasing cylinder peripheral speed. b.) Increasing cylinder speed. c.) Decreasing feed rate. d.) Increasing cylinder
Last Answer : a.) Decreasing cylinder peripheral speed.
Description : Thresher blows broken grains with chaff due to a) Higher cylinder speed. b) More feed Rate c) More cylinder concave clearance d) Moisture content of the crop is more
Last Answer : a) Higher cylinder speed.
Description : Most important factor affecting threshing efficiency a)peripheral speed of the drum b)cylinder concave clearance c)moisture content of crop d)feed rate
Last Answer : a)peripheral speed of the drum
Description : Increasing the cylinder speed result in (a) Increase threshing efficiency (b) Reduce cylinder loss (c) Increase seed damage (d) All of the above
Last Answer : (a) Increase threshing efficiency
Description : Increasing the cylinder speed result in a) Increase threshing efficiency b) Reduce cylinder loss c) Increase seed damage d) All of the above
Last Answer : d) All of the above
Description : .An olpad thresher is operated (A) Manually (B)By a pair of Bullocks (C)By a tractor (D)By an electric motor
Last Answer : (B)By a pair of Bullocks
Description : Speed of power operated machine chaff cutter is E. 35 rpm F. 50 rpm G. 600-1000 rpm H. None of the above
Last Answer : G. 600-1000 rpm
Description : In a thresher, by increasing the speed of threshing cylinder a) Threshing efficiency can be increased b) Broken grain loss can be minimized c) Un-threshed grains can be increased d) Straw breakup can be increased Ans. a
Last Answer : ans a
Description : The threshing efficiency of thresher depends on a) Cylinder peripheral speed b) Cylinder concave clearance c) Feed rate, moisture content and type of crop d) All are correct
Last Answer : All are correct
Description : machine designed for harvesting, threshing , cleaning and collecting grains while moving through standing crops. a) Combine b) Self operated VCR c) Power roller thresher d) Post harvesting technology
Last Answer : Combine
Description : Axial flow thresher uses a) Raspbar type cylinder b) Serrated disc type c) Spike tooth d) Hammer mill
Last Answer : a) Raspbar type cylinder
Description : Axial flow thresher uses a) Raspbar type cylinder b) Serrated disc type cylinder c) Spike tooth d) Hammer mill
Description : Axial flow thresher utilises (a) Rasp bar cylinder (b) Spike tooth cylinder (c) Hammer mill cylinder (d) Peg tooth cylinder
Last Answer : (b) Spike tooth cylinder
Description : A threshing cylinder of 15cm radius is rotating at 700rpm if peripheral velocity (m/sec) will be a. 11 b.105 c. 210 d. 660
Last Answer : a. 11
Description : Crank speed on the mower with dynamically balanced systems a)850-1000rpm. b)1000-1200rpm c)850-1150rpm. d)1200-1600rpm
Last Answer : b)1000-1200rpm
Description : rank speed on the mower with conventional pit man drive is a)850-1000 rpm b)1000-1200rpm c)800-1150rpm d)1200-1600 rpm
Last Answer : a)850-1000 rpm
Description : Speed of band operated machines chaff cutter having two knives F. 35 rpm G. 50 rpm H. 600 rpm I. 1000 rpm
Last Answer : F. 35 rpm
Description : Different parts of Thresher are A) Feeding device B) Threshing cylinder C) Concave D) All of the above.
Last Answer : All of the above.
Description : Optimum operating speed of rotavator is a)20-150rpm b)150-350rpm c)350-500rpm d) >500rpm
Last Answer : d) >500rpm
Description : The Japanese type rotary thresher is used for threshing a) Paddy b) Wheat c) Sunflower d) Safflower
Last Answer : Paddy
Description : The two types of cylinder used on power wheat threshers are: a) Serrated disc and rasp bar b) Spike tooth and wire loop type c) Spike tooth and hammer mill d) Hammer mill and flails
Last Answer : c) Spike tooth and hammer mill
Description : Operating pressure of power operated sprayer E. 1-7 kg/cm2 F. 10-20 kg/cm2+ G. 20-55 kg/cm2 H. >55 kg/cm2
Last Answer : G. 20-55 kg/cm2
Description : Recommended capacity of the seed box or hopper for manually operated seeder is a. 2-10 lit b. 10-60 lit c. 100-150 lit d. 200-300 lit
Last Answer : a. 2-10 lit
Description : The amount of liquid required for spraying of plantation crops is : a.) 200-400L/ha b.) 400-600L/ha c.) 600-800L/ha d.) 1000-1200L/ha
Last Answer : d.) 1000-1200L/ha
Description : he amount of liquid required for ground spraying of agricultural crops is : a.) 400-600L/ha b.) 200-400L/ha c.) 1000-2000L/ha d.) 600-800L/ha
Last Answer : a.) 400-600L/ha
Description : Operating pressure of the hand operated sprayer is E. 20-55 kg/cm2 F. 1-7 kg/cm2 G. 10-20 kg/cm2 H. >55 kg/cm2
Last Answer : F. 1-7 kg/cm2
Description : Reaper is used for a.) Plowing b.) Harvesting and threshing. c.) Cutting crops. d.) Cutting and windrow.
Last Answer : d.) Cutting and windrow.
Description : A reaper used for : a. Cutting crop b. Cutting and windrewing c. Cutting and threshing d. None of these
Last Answer : b. Cutting and windrewing
Description : Kinematic index of the straw Walker is as ratio (a) Angular velocity of straw Walker to angular velocity of threshing drum (b) Angular velocity of straw Walker to angular velocity of threshing drum (c) Angular velocity of straw Walker to linear velocity of combine (d) All of the above
Last Answer : (a) Angular velocity of straw Walker to angular velocity of threshing drum
Description : The average working speed of a hand operated chaff fitted with two knives is _________ rev/min.
Last Answer : 35
Description : It is a machine designed for harvesting ,threshing,separating, cleaning and collecting grains while moving through standing crops. a. Weeder b. thresher d. None of above
Last Answer : Ans- c. COMBINE
Description : It is a machine designed for harvesting, threshing, separating, cleaning and collecting grains while moving through standing crops a. Combine b. Thresher c. Harvestor d. all of the above
Last Answer : Ans:- a. Combine
Description : In a combine harvester the peripheral speed of the cylinder ranges between ________ m/min.
Last Answer : 1200 to 1500
Description : iesel engine has less reserve torque then spark ignition because ∙ Torque-speed curve is governed by volumetric efficiency of fuel pump and engine cylinder ∙ Torque is a function of thermal efficiency ∙ Diesel engine has generally low speed engine ∙ None of the above
Last Answer : ∙ Torque is a function of thermal efficiency
Description : The cutter bar of a tractor operated mower ordinarily makes: A. Near the front axis B. 40mm towards the real axis C. At the power take off shaft D. Between the two lower Links
Last Answer : D. Between the two lower Links
Description : power spray are operated at a pressure. a. 5-10 kg/m2 b.10-20 kg/m2 c.20-55 kg/m2 d.>55 kg/m2
Last Answer : c.20-55 kg/m2
Description : In glycinuria daily urinary excretion of glycine ranges from (A) 100–200 mg (B) 300–500 mg (C) 600–1000 mg (D) 1100–1400 mg
Last Answer : Answer : C
Description : Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C. (A) 80-120 (B) 200-300 (C) 600-800 (D) 1000-1100
Last Answer : (D) 1000-1100
Description : Piston speed for high speed engine is (a) 300-500 m/min (b) 100-300 m/min (c) 500-700 m/min (d) >700m/min
Last Answer : (a) 300-500 m/min
Description : Temperature attained in soldering of metals is about __________ °C. (A) 150-300 (B) 400-500 (C) 650-800 (D) 1000-1100
Last Answer : (A) 150-300
Description : Firing order of a six cylinder engine in which no two adjacent cylinder have power stroke is (a) 1 5 3 6 2 4 (b) 1 2 3 4 5 6 (c) 1 5 4 6 3 2 (d) 1 4 2 5 6 3
Last Answer : (a) 1 5 3 6 2 4
Description : hen displacement volume is divided by piston displacement, what will we obtained (a) number of cylinders (b) number of power stroke per minute for all cylinders (c) number of revolution of the crankshaft (engine) (d) number of revolution of crankshaft × number of cylinder
Last Answer : (b) number of power stroke per minute for all cylinders
Description : For optimum working the slip should not exceed a) 15% b) 20% c) 25% d) 30%
Last Answer : a) 15%
Description : 40 optimum working temperature for diesel engine is about ∙ 88-90°c ∙ 71-82°c ∙ 60-70°c ∙ 90-100°c
Last Answer : ∙ 88-90°c
Description : Hand operated sprayer are operated at a pressure (kg/cm2) a) 1-7 b) 7-10 c)10-20 d) 20-55
Last Answer : a) 1-7